MODERN PAPER-MAKING

FIG. 17,—BEATER ROLL, FRONT ELEVATION, SHOWING BARS ARRANGED IN CLUMPS OF Two

FIG. 18.—ELEVATION OP BBATBR ROLL, SHOWING Two METHODS OF FILLING
All bars are equally spaced, those on the left being closely grouped to allow 120 bars to the roll J inch thick. The filling
on the right allows for 80 bars bevelled to -fa -inch